mirror of
https://github.com/ttttupup/wxhelper.git
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52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
import ctypes
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import hashlib
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import hmac
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# pip install pycryptodome
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from Crypto.Cipher import AES
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def decrypt(password, input_file, out_file):
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password = bytes.fromhex(password.replace(' ', ''))
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with open(input_file, 'rb') as (f):
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blist = f.read()
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print(len(blist))
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salt = blist[:16]
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key = hashlib.pbkdf2_hmac('sha1', password, salt, DEFAULT_ITER, KEY_SIZE)
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first = blist[16:DEFAULT_PAGESIZE]
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mac_salt = bytes([x ^ 58 for x in salt])
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mac_key = hashlib.pbkdf2_hmac('sha1', key, mac_salt, 2, KEY_SIZE)
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hash_mac = hmac.new(mac_key, digestmod='sha1')
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hash_mac.update(first[:-32])
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hash_mac.update(bytes(ctypes.c_int(1)))
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if hash_mac.digest() == first[-32:-12]:
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print('decrypt success')
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else:
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print('password error')
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return
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blist = [blist[i:i + DEFAULT_PAGESIZE] for i in range(DEFAULT_PAGESIZE, len(blist), DEFAULT_PAGESIZE)]
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with open(out_file, 'wb') as (f):
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f.write(SQLITE_FILE_HEADER)
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t = AES.new(key, AES.MODE_CBC, first[-48:-32])
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f.write(t.decrypt(first[:-48]))
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f.write(first[-48:])
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for i in blist:
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t = AES.new(key, AES.MODE_CBC, i[-48:-32])
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f.write(t.decrypt(i[:-48]))
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f.write(i[-48:])
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def main():
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password = '565735E30E474DA09250CB5AA047E3940FFA1C6F767C4263B13ABB512933DA49'
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input_file = 'C:/var/Applet.db'
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out_file = 'c:/var/out/Applet.db'
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decrypt(password, input_file, out_file)
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if __name__ == '__main__':
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SQLITE_FILE_HEADER = bytes('SQLite format 3', encoding='ASCII') + bytes(1)
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KEY_SIZE = 32
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DEFAULT_PAGESIZE = 4096
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DEFAULT_ITER = 64000
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main()
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